Ratchet locking device



FIG. 1 is a front, top, right perspective view of a ratchet locking device according to our new design;

FIG. 2 is a rear, top, left perspective view of a ratchet locking device shown in FIG. 1 ;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top view thereof;

FIG. 6 is a bottom view thereof;

FIG. 7 is a right side elevational view thereof; and,

FIG. 8 is a left side elevational view thereof.

The broken lines shown in the Figures are for illustrative purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a ratchet locking device, as shown and described. 